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My Nebosh GC2 > Element 4 > Flashcards

Element 4 Flashcards

1
Q

Outline the General Requirements for Work Equipment (9)

A
  • Suitable for Task and Environment
  • Access to dangerous parts prevented & safeguards used
  • Restrict use to competent operators
  • Information, instruction, training for users, managers & maintenance staff
  • Equipment controls clearly labelled and accessible (important for emergency stop controls and emergency stops)
  • Maintained in safe working order and maintenance carried out safely
  • Routine inspection of equipment to ensure safe condition
  • Work equipment should be: Stable, marked with warning signs and devices, environmental factors such as lighting and space managed
  • Operators must obey rules for safe use
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2
Q

Define ‘Suitability’ with regards to work equipment (2)

AND

Give examples (2)

A
  • Suitable for the Task (Spanner not used to hammer a small nail in)
  • Suitable for the Environment & Conditions (Non I.S Equipment in Flammable atmospheres or certain electrical equipment used in wet conditions)
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3
Q

Identify types of work equipment (5)

AND

Give and example of each (5)

A

Work Equipment:

  • Hand Tools
  • Hand held power tools
  • Single Machine
  • Mobile Work Equipment
  • Machine assemblies

Examples:

  • Hammer
  • Portable Electric Drill
  • Bench Mounted Grinder
  • Tractor or Mobile Crane
  • Several machines linked together such as in a bottling plant
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4
Q

Outline the factors employers must consider when ensuring work equipment is suitable for the ENVIRONMENT in which it is used (5)

A
  • Lighting
  • Space considerations
  • Weather
  • Other work being carried out which may affect the operation
  • The activities of people who are not at work
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5
Q

Identify where employers can find information on whether or not equipment is suitable for the task which it is used for or the environment in which it is used (2)

A
  • Manufacturers Information

- HSE Website

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6
Q

Identify what regulations manufacturers in the UK have to comply with when supplying machinery (1)

A
  • The Supply of Machinery (Safety) Regulations 2008.
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7
Q

Identify the requirements placed on manufacturers in the EU when supplying machinery under the relevant regulations (4)

A
  • Design and manufacture machinery so that it meets essential health and safety requirements
  • Create a technical file that contains information showing the product complies with the regulations
  • Fix a CE mark to the equipment
  • Provide a written declaration of conformity
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8
Q

Outline the hierarchy of control measures created by PUWER with regards to Preventing Access to Dangerous Parts of Machinery (4)

AND

Identify where these controls must be used (2)

A
  • Fixed enclosed guards that encase or surround the dangerous part
  • Other Guards and Protection devices (interlocked guards, self adjusting guards, adjustable guards, pressure mats, trip devices and 2 handed controls)
  • Protection appliances (Jigs, Holders and Push Sticks)
  • Information, instruction, training and supervision
  • Each of these precautions must be used where practicable meaning if it can be done then it must be done
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9
Q

With regards to the provision of Information, Instruction, Training and Supervision, explain what principles must be applied by the employer.

A
  • Low Risk Activities (more simple perhaps verbal training)

- High Risk Activities (Instructions on safe use, written instructions, examination)

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10
Q

With regards to the provision of Information, Instruction, Training and Supervision, Outline the requirements for staff who manage operators (1)

A

They should:

  • As a minimum understand the basic principles of safe use of the equipment
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11
Q

With regards to the provision of Information, Instruction, Training and Supervision, Outline why it is important to provide this to maintenance staff (2)

A
  • Undertake activities with minimum risk to themselves and others
  • Understand maintenance requirements of the equipment in order to keep it in safe working order.
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12
Q

Identify the various maintenance regimes (3)

A
  • Planned preventive maintenance
  • Condition Based Maintenance
  • Breakdown maintenance
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13
Q

Outline what Planned Preventive maintenance is (2)

A
  • Carried out a prescribed intervals regardless of condition where parts are replaced or changed
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14
Q

Outline what Condition based maintenance is (1)

A
  • Carried out and parts changed where inspection indicates that use has caused deterioration
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15
Q

Outline what Breakdown Maintenance is (1)

A
  • Where maintenance is only carried out during repair
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16
Q

Outline why maintenance staff may be at greater risk when carrying out these activities (9)

A
  • Guards and enclosures removed to allow access
  • Safety Devices removed or disabled
  • Equipment has to be partially removed or dismantled
  • Power sources exposed
  • Stored power accidentally released
  • Access awkward
  • Manual Handling
  • Additional Hazards of Tools and equipment used for the maintenance work (Power Tools etc)
  • Workers may be under pressure to complete the job quickly (especially with breakdown maintenance)
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17
Q

Outline what precautions can be taken to reduce the risks of maintenance work for maintenance staff? (7)

A
  • Carried out by competent staff
  • Power sources isolated, physically locked off
  • Stored Power released or secured to prevent accidental discharge
  • If no isolation possible - cover live parts, insulated tools and PPE to be used
  • If dangerous moving parts have to be accessed - run at slower speeds and fit maintenance guards
  • Precautions taken to allow safe access especially WAH
  • Handling aids used to reduce manual handling risks
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18
Q

Outline the basic characteristics of equipment stop and start controls. (6)

A
  • Well designed and easy to use
  • Placed at suitable locations on the equipment
  • Easily identifiable
  • Kept in good working order
  • Compliant with relevant standards
  • Stop controls easy to see and reach and override all other controls
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19
Q

Give the main difference between start and stop controls (1)

A
  • Start controls are usually recessed and harder to operate accidentally whereas stop controls are easy to see and reach.
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20
Q

With regards to work equipment, Outline the considerations with regards to Lighting (4)

A
  • Adequate General workplace lighting provided around equipment
  • Local Lighting above machinery
  • Suitable for type of equipment (ie no flicker near rotating machinery due to the stroboscopic effect)
  • Suitable for the environment (intrinsically safe in a flammable atmosphere)
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21
Q

With regards to work equipment being adequately marked, Identify some typical markings that may be found on work equipment (6)

A
  • Stop and start controls
  • Abrasive wheel rotating speeds
  • SWLs
  • Colour coding of Gas Cylinders
  • Contents of storage vessels and nature of hazardous contents
  • Pipework Colour coding
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22
Q

Identify what Space Considerations can be made with regards to work equipment (2)

A
  • Operators having adequate space to move around work equipment safely
  • Other people able to move around safely without close proximity to dangerous moving parts or presenting a hazard to the operator.
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23
Q

Outline the responsibilities of users of work equipment. (8)

A
  • Only operate equipment they are authorised to
  • Operate equipment in accordance with instruction and training
  • Only use equipment for its intended purpose
  • Pre use safety Checks
  • Not use unsafe/damaged equipment
  • Report defects immediately
  • Not use under influence
  • Keep equipment clean and maintained in safe working order
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24
Q

Outline some hazards associated with the use of hand tools (5)

A
  • Human error (Striking a finger)
  • Tool shattering during use (sharp fragments)
  • Tool Blunt leading to excessive force & loss of control
  • Handle coming loose during use
  • Misuse of tool (Screwdriver used as a crowbar)
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25
Q

Outline the reason why power tools create a greater risk than hand held tools (2)

AND

Give an example supporting why this is the case (1)

A
  • The force generated by power tools is far greater and thus the potential for injury is far greater.
  • Power tools have additional hazards such as: Electricity, Fuel, Noise, Vibration, Dust, Ejection of material, Trip Hazards.

Example:

  • Ruptured disc from a disc cutter could cut an arm off, this would not happen with a handsaw.
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26
Q

Identify the typical hazards associated with power tools (7)

A
  • Electricity
  • Fuel
  • Noise
  • Vibration
  • Dust
  • Ejection of materials
  • Trip Hazards
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27
Q

Outline the steps management should take to ensure safe use of portable power tools (7)

A
  • Suitable for task & environment
  • Operators trained and given information on safe use then competence verified
  • Supervision to ensure safe use
  • Pre use inspection by operators & formal inspections by managers or supervisors
  • Substandard tools repaired or discarded
  • Maintained in safe working order according to a maintenance schedule
  • Maintenance carried out by competent personnel only and records kept (tool labelled with next maintenance date)
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28
Q

Outline the PRACTICAL precautions operators need to take to ensure safe use of portable power tools (8)

A
  • Only used for intended purpose and within their design specification
  • Guards and safety devices fitted
  • Correct PPE always used
  • Trailing cables positions so as not to cause a trip hazard and will not be damaged by passing vehicles
  • Ejected parts controlled to stop risk to others nearby
  • Dust exposure controlled by damping down or use of respiratory protective equipment
  • Noise exposure controlled (PPE)
  • Vibration exposure controlled (Rotating use etc)
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29
Q

With regards to fuel powered portable power tools, outline the precautions necessary for storing and handling petrol (2)

A
  • Stored in labelled, metal container, in well ventilated area, secure area away from ignition sources
  • Handled with care in a well ventilated area (preferably outside) away from ignition sources.
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30
Q

Identify the mechanical hazards of machinery (11)

A
  • Crushing
  • Shearing
  • Cutting
  • Severing
  • Entanglement
  • Drawing in
  • Trapping
  • Impact
  • Stabbing or Puncture
  • Friction or Abrasion
  • High Pressure Fluid Injection
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31
Q

Identify the NON mechanical hazards of machinery (9)

A
  • Electricity
  • Noise
  • Vibration
  • Hazardous substances
  • Radiation (Ionising/Non ionising)
  • Extreme Temperatures
  • Ergonomics
  • Slips, Trips & Falls
  • Fire & Explosion
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32
Q

Explain Crushing (2)

A
  • Body or body part trapped between 2 moving parts or one moving part and a fixed object
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33
Q

Explain Shearing (2)

A
  • Part of the body (usually the fingers) trapped between 2 moving parts of machine, like a guillotine.
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34
Q

Explain Cutting or Severing (1)

A
  • Contact is made with a moving sharp edge part such as a blade
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35
Q

Explain Entanglement (2)

A
  • Loose items such as hair and clothing get caught on rotating parts of the machine and the person is wound into the machine
36
Q

Explain Drawing in or Trapping (2)

A
  • A part of the body is caught between two moving parts and drawn into the machine - e.g. at ‘in running nips’
37
Q

Explain Impact (1)

A
  • Body is struck by a powered part of the machine
38
Q

Explain Stabbing or Puncture (2)

A
  • Sharp parts of a machine or sharp ejected parts penetrate the body (swarf, nail from nail gun, sewing machine needle)
39
Q

Explain Friction or Abrasion (2)

A
  • Contact made with a fast moving surface which may be smooth or rough (Bench Grinder)
40
Q

Explain High pressure fluid injection (3)

A
  • Fluid at very high speed ejected from machine and penetrates the skin (hydraulic hoses on a torquing machine)
41
Q

With regards to fixed guards, identify the main feature of an

  • Enclosing Guard (1)
  • Perimeter Guard (1)
A
  • Shaped to fit the machine quite closely

- Like a fence around the machine

42
Q

Outline the basic principles of a Fixed Guard (3)

A
  • Completely prevents access to dangerous parts
  • It is in a fixed place
  • Fixings require a tool for removal - the guard must not be removable by finger force alone
43
Q

Outline the NON mechanical hazards fixed guards can protect against (6)

A
  • Preventing access to electrical conductors
  • Containing Radiation Sources
  • Preventing access to hot surfaces or hot parts
  • Noise
  • Dust
  • Swarf or other hazardous materials ejected from the machine
44
Q

Identify the main disadvantage of using Fixed Enclosed Guards (1)

A
  • Totally prevents easy access to machine which may be required for maintenance activities
45
Q

Identify different types of Guards for Machinery (8)

A
  • Fixed Guards
  • Interlocked Guards
  • Adjustable and Self Adjusting Guards
  • Sensitive Protective Equipment (Trip Devices)
  • Two-Hand Controls
  • Hold To Run Controls
  • Emergency Stop Controls
  • Protective Appliances
46
Q

Outline the basic principles of Interlocked Guards (4)

A
  • Power to the machine disabled and machine will not operate until the guard is in place
  • Either the guard is locked shut until it is safe for the guard to open - or - the act of opening the the guard stops the dangerous parts and disables power
  • Will not allow the machine to restart until the guard has been properly closed
  • Will not allow the machine to re-start until the guard has been properly closed
47
Q

Identify machines that have interlocked guards incorporated (2)

A
  • Washing Machine

- Microwave

48
Q

Identify the main limitation of using interlocked guards and give an example (2)

A
  • Easy to bypass

- For example, climbing over an interlocked guard to access a component of a bottling plant machine.

49
Q

Due to the relative ease of bypassing an interlocked guard, outline what steps can be taken to reduce the risk of this happening (3)

A
  • The appropriate type is used
  • Strict rules imposed about safe use of interlocking guards
  • Regular maintenance is carried out
50
Q

Give the reason for using Adjustable and Self Adjusting Guards and give an example of the type of work and machinery these are normally used for (2)

A
  • Used when it is not possible to completely prevent access to dangerous parts.
  • Woodwork or metalwork where a piece of material has to be fed into the machine such as a Table Saw
51
Q

Identify the main characteristic of

  • An Adjustable Guard (1)
  • Self Adjusting Guard (1)
A
  • Can be set to a range of positions by the operator

- Does the same thing but is spring loaded or linked to the machine parts

52
Q

Give the main limitations of using Adjustable and self Adjusting Guards (3)

A
  • Do not completely prevent access to dangerous parts
  • Are very easy to defeat
  • Rely entirely on operator competence
53
Q

Give the main characteristics of Sensitive Protective or Trip Devices (3)

A
  • A form of sensor is used to detect the presence of an operator and stop the machine
  • Intended to minimise the severity of an injury
  • Does not put a physical barrier between the operator and the dangerous part
54
Q

Identify types of Sensitive Protective or Trip Devices (3)

AND

Give a brief description of how they operate (3)

A
  • Pressure safety mats (Detects weight, stops machine)
  • Trip Bars (Positions close to dangerous parts, when touched, stops machine)
  • Photoelectric Devices (Shines Beam of light across access points)
55
Q

Outline the main limitations of Sensitive Protective or Trip Devices (5)

A
  • Do not provide a physical barrier
  • Can be overridden (ie platforms to span over a pressure sensitive mat)
  • May not operate fast enough to prevent harm
  • May be overly sensitive
  • Are more complicated than simple physical guards therefor may fit more frequently
56
Q

Give the main feature of Two-Hand Controls (1)

A
  • Operation of the machine can only be achieved when 2 start buttons are pressed at the same time.
57
Q

Identify the important principles of Two-Hand Controls (3)

A
  • Controls must be more than one hand span apart
  • Controls must be activated simultaneously
  • Releasing the controls must stop the machine immediately
58
Q

Give the main limitations of using Two-Hand controls (2)

A
  • Do not protect other parts of the body

- Are relatively easy for two operators working together to bypass the system

59
Q

Give the important principles of Hold-to-Run Controls (2)

A
  • The handle or pedal must be held at all times in order for the machine to operate
  • Releasing the control must stop the machine immediately
60
Q

Outline the main limitations of Hold-to-Run controls (3)

A
  • Do not protect any parts of the operators body
  • Can be held or operated by a person other than the operator
  • Can be easily defeated by the operator
61
Q

Outline the key principles of Emergency stop controls (4)

A
  • They should bring the machine to a safe stop as quickly as possible
  • They machine should require resetting after using the button ensuring the machine cannot be started up again until this has happened
  • Release of the button should not start the machine
  • Should never be used as a substitute for machine guarding or protection devices
62
Q

Outline the main limitations of Emergency Stop Controls (3)

A
  • They are only used once the danger has been sensed by the operator and by then its too late
  • A person trapped may not be able to reach the emergency stop
  • It may not stop the machine quickly enough to prevent injury
63
Q

Outline the reason why gloves may not be a suitable item of PPE to use with some machinery (1)

A
  • Increases the risk or drawing in or entanglement and may increase the severity of injury
64
Q

Outline Photocopier

  • Hazards (4)
  • Controls (3)
A

Hazards:

  • Drawing in and entanglement from contact with moving parts
  • Electricity
  • Contact with hot parts
  • Health Hazard from ozone (an irritant gas: unstable form of oxygen)

Controls:

  • Fixed and interlocked guards
  • Routine inspection and PAT testing
  • Use in Ventilated room
65
Q

Outline Paper Shredder

  • Hazards (3)
  • Controls (2)
A

Hazards:

  • Cutting and drawing in (running nip)
  • Electricity
  • Ergonomic from handling of waste

Controls:

  • Fixed and interlocked guards
  • Routine inspection and PAT testing
66
Q

Outline Bench-Top Grinder

  • Hazards
  • Controls
A

Hazards

  • Abrasion
  • Drawing in at nip point between wheel and tool rest
  • Puncture by ejected parts
  • Entanglement with the spindle
  • Electricity
  • Hot Parts Cause by friction
  • Dust
  • Noise and Vibration

Controls

  • Fixed enclosed guards around motor and part of abrasive wheel
  • Adjustable polycarbonate eye guards over the exposed part of the wheel
  • Tool rest adjusted to minimise nip point between the rest and the wheel
  • Restricting use to competent operators
  • P.P.E (Hearing Protection, Goggles)
  • Routine inspection and PAT Testing
67
Q

Outline Pedestal Drill

  • Hazards
  • Controls
A

Hazards:

  • Entanglement
  • Stabbing or puncture (drill bit/swarf)
  • Impact if struck by jammed spinning workpiece
  • Drawing in at nip points between motor and drive belts.
  • Electricity
  • Noise
  • Hot Parts
  • Hazardous substances

Controls:

  • Fixed guards over motor and drive mechanisms
  • Adjustable (possibly interlocked) guard over the chuck and drill bit
  • Clamp to secure workpiece to base
  • P.P.E (Impact goggles/ear plugs/gloves)
  • Routine inspection and PAT testing
  • Restricting use to trained operators
68
Q

Outline Cylinder Mower (Petrol Driven Ride-on Type)

  • Hazards
  • Controls
A

Hazards:

  • Cutting on contact with moving blades
  • Impact or crushing
  • Entanglement in moving parts
  • Drawing in at ‘nip points’
  • Noise
  • Vibration
  • Fire & Explosion
  • Health hazard from allergies to pollen

Controls:

  • Fixed Guards over the drive mechanism
  • Safety switch under seat to ensure driver is in seat before machine operates
  • Restricted Use to competent operators
  • Hearing protection
  • Fuelling in well ventilated area
  • Job rotation for full body vibration
  • Restricting workers with sensitisation using machine
69
Q

Outline Strimmer (Petrol Driven)

  • Hazards
  • Controls
A

Hazards:

  • Cutting
  • Entanglement
  • Puncture by ejected objects
  • Noise
  • Vibration
  • Fire & Explosion
  • Ergonomic hazards (repetitive, twisting, carrying)
  • Health hazard from atomised animal faeces
  • Health hazard from pollen allergy

Controls:

  • Fixed enclosed guards over motor and drive mechanisms
  • Partial side guards around cutter head
  • Safety interlocked throttle trigger to prevent accidental operation of the throttle
  • P.P.E (Visor, Steel Toe Caps, Ear plugs, gloves dust mask)
  • Job rotation for vibration
  • Harness to support machine
  • Refuelling in ventilated area
  • Restricted use to trained operators
70
Q

Outline Chainsaw (petrol driven)

  • Hazards
  • Controls
A

Hazards:

  • Cutting
  • Entanglement
  • Drawing in at nip point between blade and casing
  • Puncture by ejected parts
  • Noise
  • Vibration
  • Fire & Explosion
  • Ergonomic considerations
  • `Health hazard from dust and sap

Controls:

  • Fixed enclosing guards over motor & drive mechanisms
  • Hand Guard for front hand grip
  • Chain Brake to stop chain in event of kick back
  • Safety interlocked throttle trigger to prevent accidental operation of throttle
  • Job Rotation for Vibration
  • Refuelling in well ventilated area
  • Appropriate PPE (Face Visor & Impact Goggles, Hearing protection, stout gloves, Steel toe cap boots, Cut resistant trousers of chaps, stout shirt)
71
Q

Outline Compactor

  • Hazards
  • Controls
A

Hazards:

  • Crushing inside during operation
  • Shearing between moving arms
  • Crushing on impact by ejected bale or container lorry
  • Electricity
  • High pressure fluid injection (hydraulics)
  • Ergonomic from handling material during loading

Controls:

  • Fixed perimeter guard around loading area
  • Interlocked Guard to allow access to loading area
  • Routine inspection and maintenance by competent engineers
  • Restricting Use to competent operators
72
Q

Outline Checkout Conveyor System

  • Hazards
  • Controls
A

Hazards:

  • Drawing in at nip points between the belt and counter top
  • Entanglement with the motor and rollers
  • Friction on contact with the moving belt
  • Electricity
  • Ergonomic Factors (Handling items while seated
  • Non ionising Radiation from the laser barcode scanner

Controls:

  • Fixed and interlocked guards to motor and drive mechanisms
  • Trip fitted to the conveyor to prevent drawing in
  • Routine inspection and PAT Testing
  • Restricted use to trainer operators
73
Q

Outline Cement Mixer

  • Hazards
  • Controls
A

Hazards:

  • Entanglement with drum or motor
  • Drawing in at nip points between motor and drive
  • Crushing between the drum and drums stop when tipping
  • Friction or abrasion on contact with moving drum
  • Electricity
  • Ergonomic from handling when loading
  • Health Hazard from cement dust and wet cement

Controls:

  • Fixed Guards to motor and drive mechanisms
  • Routine inspection and PAT Testing
  • Restricting use
  • Hand and Eye Protection
74
Q

Outline Bench-Mounted Circular Saw

  • Hazards
  • Controls
A

Hazards:

  • Cutting on blade
  • Entanglement with the drive motor
  • Drawing in at nip points between motor and drive belt
  • Ejection of the workpiece during cutting
  • Electricity
  • Noise & Vibration
  • Health Hazard from inhalation of wood dust

Controls:

  • Fixed Guard fitted to the motor and bottom of cutting blade
  • Adjustable Top Guard fitted above the blade
  • Riving Knife to prevent kickback of workpiece
  • PPE (Hearing, Impact resistant eye protection)
  • Routine Inspection and PAT testing
  • Restricting use
75
Q

Outline the basic characteristics of a guard of safety device which makes it SUITABLE.

A
  • Meets relevant standards (prevents access to dangerous parts)
  • Strong and Robust (to withstand forces it is subjected to)
  • Compatible (Must not interfere with machine operation or the process)
  • Not easy to defeat or bypass
  • Vision (Must not interfere with the need to see in)
  • Ventilation (Must not interfere with ventilation needs of machine)
  • Easy to maintain and kept in good condition
  • Should not have to be removed to allow maintenance on the machine
  • Doesn’t increase the overall risk
76
Q

With regards to Emergency stop buttons outline what consideration must be given to large machines? (1)

A
  • Several emergency stop buttons should be fitted at various locations around the machine.
77
Q

Identify the basic PHYSICAL requirements with regards to safe use of work equipment (3)

AND

in each case give three examples (9)

A

Physical Requirements:

  • Be stable
  • Be appropriately marked
  • Have appropriate warnings

Examples:

  • Stable - Bolted to floor, Outriggers Fitted, Stabilisers Fitted
  • Appropriately Marked - Labels on control panels, SWL’s, Maximum Speeds
  • Appropriate warnings - Warning signs by dangerous parts, flashing beacons, flashing lights
78
Q

Outline the basic requirements of markings on work equipment (1)

A
  • Marked in a clearly visible manner giving any relevant health and safety information
79
Q

Identify the precautions that can be taken to ensure safe use of hand tools (5)

A
  • Tools must be suitable for Task & Environment
  • Users given appropriate information, instruction, training on safe use
  • Visual inspection before use by the user
  • Maintained in safe condition
  • Supervision to ensure safe working practices are followed
80
Q

Outline steps which can be taken to reduce the risks associated with using electrically powered work equipment (5)

A
  • Use battery operated tools
  • Use a low voltage supply (110v instead of 240v)
  • Avoid damage to electrical flex
  • Tool, flex and plug routinely inspected by the operator prior to use
  • Given formal electrical safety inspection, thorough examination and test
81
Q

Identify the two categories of Machinery Hazards (2)

A
  • Mechanical Hazards

- Non Mechanical Hazards

82
Q

Outline the hierarchy of control for dangerous moving parts of machinery mentioned in the Provision and Use of Work Equipment Regulations (PUWER) - Regulation 11

A
  • Fixed Enclosed Guards that encase or surround the dangerous part
  • Other Guards and protection devices such as interlocked guards, self adjusting guards, adjustable guards, pressure mats, trip devices and two-hand controls
  • Protection appliances such as jigs, holders and push sticks
  • Information, instruction, training and supervision
83
Q

Outline what must be taken into consideration if a fixed guard is used and made form mesh to allow ventilation (1)

A
  • Care must be taken to ensure that the mesh size is not so large as to allow access to dangerous parts
84
Q

Identify what a Protective Appliance is (1)

A
  • A piece of equipment that allows an operator to keep their hands away from dangerous parts.
85
Q

Outline when information, instruction, training and supervision becomes even more important (1)

A
  • Where the level of risk is high and it has not been possible to use other controls to safeguard the machinery

My Nebosh GC2 (4 decks)

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